so, creating a moose class to represent a single record from a db table. The class has a property "Fields" which is a hash which stores the name of each field along with the value of the field in the record being represented.

When the class loads the record, it needs to clear this hash reference, so it can load the "new" record. Being a "property" of the moose class, Fields is a hash ref, not a hash. Getting an error when I try to clear the hash reference before repopulating.

specific line with the problem is

$self->Fields = 0;

in the select method.

package AXRecord;

# Our libraries
use lib 'C:\Users\Jay\Desktop\SBS DEV\CODE\perl\Utilities';
use AXControl;
use AXSQL;
use Moose;
use DBI;

# Attributes
has 'Name' => (is => 'rw', isa => 'Str', required => 1);
has 'Fields' => (is => 'rw', isa => 'HashRef');
has 'FieldCount' => (is => 'rw', isa => 'Num');
has 'Changed'  => (is=>'rw', isa => 'Boolean');
has 'Where' => (is => 'rw', isa => 'Str'); 
has 'ControlObject' => (is => 'rw', isa => 'Object', required => 1);
has 'Keys' => (is => 'rw', isa=>'Array');
has 'Populated' => (is => 'rw', isa => 'Boolean');

# Contains a single record

sub BUILD
# Constructor
{
    my $self;    
    $self = shift;
        
    if (defined $self->Where)
        {
        $self->Select();
        }
    else
        {
        $self->Populated = 0;
        }
}
# Insert the record
sub Insert
{

}
#Delete using the keys in the record
sub Delete 
{


}
#Update using the keys and values in the record
sub Update
{



}
#Save the record
sub Save
{


}

sub Select
    {
    my ($SQLStr, $Cnt, $sql, @Values, $self, $Col, @Flds, $i);
    
    $self = shift;
    
    $SQLStr = "SELECT * FROM " . $self->Name . ' ' . $self->Where;
    print "Record.pm \t $SQLStr\n";
    $sql = AXSQL->new(ControlObject => $self->ControlObject, SQLString
+ => $SQLStr);
    
    #construct a hash using the metadata and the data from the actual 
+table
    $self->Fields = 0;
    @Values = $sql->Fetch();
    if ($sql->Rowcount >= 1)
        {
        $self->Populated = 1;
        }
    else
        {
        $self->Populated = 0;
        }
    #Get field Names
    $sql = AXSQL->new(ControlObject => $self->ControlObject, SQLString
+ => "show fields from '" . $self->Name . "'");
    @Flds = $sql->fetch();
    # Construct the hash
    for ($i..$#Flds)
        {
        if ($self->Populate == 0)
            {
            $self->Fields->{$Flds[$i]} = $Values[$i];
            }
        Else
            {
            $self->Fields->{$Flds[$i]} = ' ';
            }
        }
    
    #Get the primary key fields        
    $self->Keys = ();
    $sql = AXSQL->new(ControlObject => $self->ControlObject, SQLString
+ => "SELECT column_name FROM information_schema.`key_column_usage` WH
+ERE table_name = '" . $self->name . "' order by ordinal_position");
    while (($Col) = $sql.fetch())
        {
        push $self->Keys, $Col;
        }
    
    $Cnt = $self->Fields;
    $self->FieldCount = $Cnt;
    $self->Changed = -1;
    }
1;
[download]

Error message is

C:\Users\Jay\Desktop\SBS DEV\CODE\perl>perl -w CollectEmail.pl Record.pm SELECT * FROM customer WHERE NAME = 'Testing' RowCount 1 Can't modify non-lvalue subroutine call at C:\Users\Jay\Desktop\SBS DEV\CODE\per l\Utilities/AXRecord.pm line 73. C:\Users\Jay\Desktop\SBS DEV\CODE\perl>

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